Results 181 to 190 of about 18,687 (256)

Preliminary Simulation of a Passive Hybrid-Excited Coaxial Magnetic Gear

Control and System Graduate Research Colloquium
Coaxial magnetic gears (CMGs) are widely explored for high torque density applications due to their efficient use of permanent magnets (PMs). However, the volatility in rare earth permanent magnet (REPM) prices, supply scarcity, and environmental ...
S. Raja, Mohd Firdaus Bin Mohd Ab Halim, Fauzi bin Ahmad, Syed Muhammad Naufal Syed Othman   +3 more
semanticscholar   +1 more source

Optimization of coaxial magnetic gear and its application in wave power generation

International Journal of Applied Electromagnetics and Mechanics, 2023
The application of coaxial magnetic gear (CMG) in wave generator instead of traditional variable speed gearbox can effectively improve torque density and reduce torque ripple.
Hong-wei Fang, Ziyan Li
semanticscholar   +1 more source

Design and Optimization of a Convex-T Coaxial Magnetic Gear with Spoke Structure and Halbach Arrays

International Conference on Electrical Machines and Systems, 2023
To enhance the electromagnetic performance of coaxial magnetic gear (CMG), a Convex-T CMG with Spoke structure and Halbach array is proposed. The permanent magnets (PMs) of the inner rotor are Convex-T alternating arrangements, while the PMs of the outer
L. Jing, Zeyu Min, Wei Liu, R. Qu
semanticscholar   +1 more source

Operational Torque Characteristics of Innovative Coaxial Magnetic Gear's Constructions

2023 18th Conference on Electrical Machines, Drives and Power Systems (ELMA), 2023
In this paper a thorough investigation of the torque of innovative coaxial magnetic gear's constructions has been made. The innovations of the construction of the coaxial magnetic gear is that permanent magnets between the steel segments of the magnetic ...
M. Todorova, I. Marinova
semanticscholar   +1 more source

3D Modelling of a Coaxial Magnetic Gear

2019 11th Electrical Engineering Faculty Conference (BulEF), 2019
In this paper a 3D model of a coaxial magnetic gear has been developed. Typically, magnetic gears are considered as a 2D plane-parallel models. In such models, the edge effects on magnetic field distributions in the forehead of the construction are not estimated where magnetic reluctance is significant especially for shorter length designs.
Valentin Mateev, Miglenna Todorova, Iliana Marinova   +2 more
openaire   +1 more source

Cogging Torque Suppression of Inner Rotor in Coaxial Magnetic Gear with Modulator Slots

International Conference on Electrical Machines and Systems, 2023
In this paper, a coaxial magnetic gear (CMG) structure with modulator slots is proposed for the suppression of the cogging torque of inner rotor. The added modulator slots in CMG can effectively reduce the magnitude of the cogging torque by extending the
Zhiwei Zhao, Yongdan Chen, Yan Ding, Chaofan Miao, Cong Zeng, Huaqiang Cai, Jinya Chen, Dinghua Zhang, Kan Liu   +8 more
semanticscholar   +1 more source

Eddy Current Losses of Coaxial Magnetic Gears

2018 XIII International Conference on Electrical Machines (ICEM), 2018
Reduction of eddy current losses is essential for magnetic gears efficiency enhancement. These losses are resulting in output torque reduction, especially in high rotational speeds and high gear ratios. In this paper, we developed an approach for determination of the eddy current losses of a coaxial magnetic gear.
V. Mateev, M. Todorova, I. Marinova
openaire   +1 more source

Noise and Vibration Analysis of Contra-Rotating Propeller Underwater Electric Propulsion System with PMSM and Coaxial Magnetic Gear

International Conference on Electrical Machines and Systems
This paper presents a noise and vibration analysis of a contra-rotating propeller (CRP) underwater electric propulsion system integrated with a permanent magnet synchronous motor (PMSM) and a coaxial magnetic gear (CMG).
Jang-Hyun Park, Do-Kwan Hong
semanticscholar   +1 more source

Analysis on a Novel Coaxial Magnetic Gear

Applied Mechanics and Materials, 2011
This paper analyzed the high efficient performance of a novel magnetic gear, which offers several advantages compared to mechanical gears in terms of reducing maintenance, improving reliability and inherent overload protection. The magnetic gear, based on step motor principle, was analyzed on transmission torque both statically and dynamically.
Yong Kui Man, Yi Sheng Zhang, Yu Shuang Zhao   +2 more
openaire   +1 more source

Design and analysis of a hybrid-excited coaxial magnetic gear utilising DC field excitation coils

Przeglad Elektrotechniczny
: This paper presents a hybrid-excited coaxial magnetic gear (HE-CMG) with direct current (DC) field excitation coils (FECs). In the outer rotor, the north permanent magnets (PMs) are replaced with cylindrical iron poles, slotted to form a stator slot ...
S. Raja
semanticscholar   +1 more source